"Inseparability of Manufacture and Sales" refers to the fact that, in the hospitality industry, the term "inseparable" has NOTHING to do with ________.
1) Manufacturing and sales cannot be separated in the hospitality industry
2) The term "inseparable" is not relevant in the hospitality industry
3) The term "inseparable" refers to the close relationship between manufacturing and sales in the hospitality industry
4) The term "inseparable" is a marketing concept used in the hospitality industry